Electric drive system with power take-off (PTO) and electric drive operating method

An electric drive system, comprising:

• a first electric machine rotationally coupled to a first sun gear in a first planetary gear set;
• a second electric machine rotationally coupled to a second sun gear in a second planetary gear set;
• a first clutch configured to selectively rotationally couple the second sun gear to a first ring gear in the first planetary gear set;
• a second clutch configured to selectively ground a second ring gear in the second planetary gear set;
• a power take-off (PTO) clutch configured to selectively rotationally couple the first electric machine;
• wherein a first carrier in the first planetary gear set is rotationally coupled to a first output interface and a second carrier in the second planetary gear set is coupled to a second output interface;
• and
• a controller including instructions that when executed cause the electric drive system to:
• operate the electric drive system in a mid-speed mode via engaging the second clutch and disengaging the first clutch.

An electric drive system, comprising:

• a first electric machine rotationally coupled to a first sun gear in a first planetary gear set;
• a second electric machine rotationally coupled to a second sun gear in a second planetary gear set;
• a first clutch configured to selectively rotationally couple the second sun gear to a first ring gear in the first planetary gear set;
• a second clutch configured to selectively ground a second ring gear in the second planetary gear set;
• a power take-off (PTO) clutch configured to selectively rotationally couple the first electric machine;
• wherein a first carrier in the first planetary gear set is rotationally coupled to a first output interface and a second carrier in the second planetary gear set is coupled to a second output interface;
• and
• a controller including instructions that when executed cause the electric drive system to:
• operate the electric drive system in a higher-speed mode via engaging the second clutch and disengaging the first clutch.